The Atago (DDG-177) is a modern Japanese missile destroyer, the keel of which was laid in 2004, launched in August 2005, and commissioned in 2007. The total length of the ship is 170 meters and a width of 21 meters. Full displacement probably slightly exceeds 10,000 tons, and the maximum speed is around 30-31 knots. The destroyer is armed with: 2 VLS Mk. 41 - one 32-guide and one 64-guide, two Type 90 (SSM-1B) rocket launchers, a single 127mm Mark 45 cannon or two 20mm Vulcan Phalanx kits. The ship also uses one Mitsubishi SH-60K helicopter. The Atago (DDG-177) is the first of the two destroyers that belong to the class with the same name - the Atago - to date. These types of units were designed and built as an extension of the Congo-class in order to complement them in the line. Compared to their predecessors, they are slightly longer and have a slightly higher displacement. However, they have reinforced rocket armament, they also have a hangar for an on-board helicopter. The 127 mm gun was also modernized, as was the electronic equipment, which is based on the modernized version of the AEGIS system, which works with the AN / SPY-1D (V) radar. Generally, units of this class have very similar combat capabilities to the American destroyers of the Arleigh Burke Flight IIA class. The Atago (DDG-177) was built at the Mitsubishi Heavy Industries shipyard in Nagasaki. One of the most important incidents in which he was involved so far was the collision with a civilian fishing boat in February 2008, which resulted in the disappearance of two fishermen.Hyuga (DDH-181) is a modern Japanese helicopter (another class term: helicopter destroyer). The keel for this vessel was laid in 2006, and the launch took place in August 2007. The unit was accepted into service with the Japanese Naval Self-Defense Forces in March 2009. The total length of the vessel at the time of launch was 197 meters and a width of 33 meters. Full displacement reaches about 19,000 tons, and the maximum speed probably exceeds 30 knots. The on-board armament consists of, inter alia, 16 Mk. 41 or two 20mm Vulcan Phalanx kits. The ship can operate a maximum of 18-20 aircraft. Hyuga (DDH-181) is the first of two ships belonging to the class of the same name. Units of this type were created to replace the Shirane-class destroyers in the line. Compared to their predecessors, they differ in many elements. First of all, they have a continuous flight deck, almost completely different on-board armament, as well as they are more than twice as large as the displacement of Shirane type units. The main purpose of Hyuga ships is ZOP (anti-submarine combat) activities. Hyuga (DDH-181) was built by IHI Corporation in a shipyard in Yokohama and takes its name from one of the prefectures in modern Japan and one of the Japanese battleships of the Second World War. Shortly after entering service, Hyuga (DDH-181) took part in a joint exercise with the US Navy and operated with the USS George Washington aircraft carrier. In March 2011, the unit supported the rescue operation in Miyagi Prefecture after the earthquake. In June 2017, Hyuga operated in the waters of the Korean Strait due to the increase in political tension caused by North Korea and the development of its nuclear program.The Murasame (DD-101) is a modern Japanese missile destroyer, the keel of which was laid in 1993, launched in August 1994, and commissioned in 1996. The total length of the ship is 151 meters and 17.4 meters wide. Full displacement is about 6,100 tons, and the maximum speed is around 30-31 knots. The destroyer's armament includes: a single 76 mm gun, two 20 mm Vulcan Phalanx CIWS sets, two VLS Mk.41 and Mk.48 16-rail launchers, and two triple torpedo tubes. The ship has a single Mitsubishi SH-60 helicopter. Murasame (DD-101) is the lead ship of the destroyer class of the same name. Units of this type have been designed and constructed primarily in terms of ZOP (anti-submarine combat) activities and countering surface targets. The Murasame-class destroyers arose as successors to the Asagiri-class. Compared to their predecessors, they have several significant improvements. First of all, they used some of the achievements of stealth technology - especially in the construction of superstructures. Murasame-class ships also have much more modern electronic equipment (especially radars) and missile weapons located in vertical VLS launchers. The first ship of this class was the Murasame (DD-101), which was built at the IHI Corporation shipyard in Tokyo. In 1998, 2000 and 2003, the unit took part in the international RIMPAC maneuvers. In 2004, the unit was sent to the Arabian Sea and Persian Gulf region to support American forces operating in that region, and four years later Murasame (DD-101) operated in the Indian Ocean providing logistical support to international forces taking part in operations in Afghanistan. Interestingly, in 2005, the destroyer took part in the celebration of the 200th anniversary of the Battle of Trafalgar. In 2010 and 2012, the destroyer operated in the waters of the Gulf of Aden and the Horn of Africa, carrying out anti-piracy activities and - above all - protecting civil shipping. Murasame (DD-101) is currently in active service.Akizuki (DD-115) is a modern Japanese destroyer, the keel of which was laid in 2009, it was launched in October 2010, and it was commissioned in 2012. The total length of the ship is 150.5 meters and a width of 18.3 meters. Full displacement reaches 6,800 tons and maximum speed up to 30 knots. The destroyer is armed with: a single 127 mm gun, two 20 mm Vulcan Phalanx sets, a single 8-rail Type 90 rocket launcher or a 32-rail VLS Mk.41 rocket launcher. The ship can also operate a single SH-60K helicopter. Akizuki (DD-115) is the first of four ships of the class of the same name. The Akizuki-class ships were designed and built as escort units for helicopter destroyers, and de facto light aircraft carriers, the Hyuga and Izumo-class, and Kongo or Atago-class units. It is assumed that the Akizuki-class destroyers are a largely enlarged Takanami type, but they differ from them by the use of a different propulsion unit, the use of much more modern sensors or - especially - the use of the ATECS battlefield management system. The main task of destroyers of this type is to counter air and underwater targets. It is worth adding that the Akizuki (DD-115) was built at the Nagasaki shipyard owned by Mitsubishi Heavy Industries. Its name, in turn, refers to one of the Japanese destroyers from the Second World War.